324295.fig.002
Figure 2: Simplified layout of a tertiary treatment reed-bed shown is the simplified layout of a tertiary treatment reed-bed, where wastewater enters at the inlet, is cleaned in the reed-bed area through filtration and absorption of nutrients by the reeds, and released at the outlet into rivers and streams, hence the location of the reed-bed alongside flowing water. Source is Severn Trent Water [11].